projects / GitHub / MotorolaMobilityLLC / kernel-slsi.git / blame
| Commit | Line | Data |
|---|---|---|
| b920de1b DH |
1 | /* MN10300 Cache flushing |
| 2 | * | |
| 3 | * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. | |
| 4 | * Written by David Howells (dhowells@redhat.com) | |
| 5 | * | |
| 6 | * This program is free software; you can redistribute it and/or | |
| 7 | * modify it under the terms of the GNU General Public Licence | |
| 8 | * as published by the Free Software Foundation; either version | |
| 9 | * 2 of the Licence, or (at your option) any later version. | |
| 10 | */ | |
| 11 | #ifndef _ASM_CACHEFLUSH_H | |
| 12 | #define _ASM_CACHEFLUSH_H | |
| 13 | ||
| 14 | #ifndef __ASSEMBLY__ | |
| 15 | ||
| 16 | /* Keep includes the same across arches. */ | |
| 17 | #include <linux/mm.h> | |
| 18 | ||
| 19 | /* | |
| 3dbda77e | 20 | * virtually-indexed cache management (our cache is physically indexed) |
| b920de1b DH |
21 | */ |
| 22 | #define flush_cache_all() do {} while (0) | |
| 23 | #define flush_cache_mm(mm) do {} while (0) | |
| 24 | #define flush_cache_dup_mm(mm) do {} while (0) | |
| 25 | #define flush_cache_range(mm, start, end) do {} while (0) | |
| 26 | #define flush_cache_page(vma, vmaddr, pfn) do {} while (0) | |
| 27 | #define flush_cache_vmap(start, end) do {} while (0) | |
| 28 | #define flush_cache_vunmap(start, end) do {} while (0) | |
| 2d4dc890 | 29 | #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0 |
| b920de1b DH |
30 | #define flush_dcache_page(page) do {} while (0) |
| 31 | #define flush_dcache_mmap_lock(mapping) do {} while (0) | |
| 32 | #define flush_dcache_mmap_unlock(mapping) do {} while (0) | |
| 33 | ||
| 34 | /* | |
| 3dbda77e | 35 | * physically-indexed cache management |
| b920de1b DH |
36 | */ |
| 37 | #ifndef CONFIG_MN10300_CACHE_DISABLED | |
| 38 | ||
| 39 | extern void flush_icache_range(unsigned long start, unsigned long end); | |
| 40 | extern void flush_icache_page(struct vm_area_struct *vma, struct page *pg); | |
| 41 | ||
| 42 | #else | |
| 43 | ||
| 44 | #define flush_icache_range(start, end) do {} while (0) | |
| 45 | #define flush_icache_page(vma, pg) do {} while (0) | |
| 46 | ||
| 47 | #endif | |
| 48 | ||
| 49 | #define flush_icache_user_range(vma, pg, adr, len) \ | |
| 50 | flush_icache_range(adr, adr + len) | |
| 51 | ||
| 52 | #define copy_to_user_page(vma, page, vaddr, dst, src, len) \ | |
| 53 | do { \ | |
| 54 | memcpy(dst, src, len); \ | |
| 55 | flush_icache_page(vma, page); \ | |
| 56 | } while (0) | |
| 57 | ||
| 58 | #define copy_from_user_page(vma, page, vaddr, dst, src, len) \ | |
| 59 | memcpy(dst, src, len) | |
| 60 | ||
| 61 | /* | |
| 62 | * primitive routines | |
| 63 | */ | |
| 64 | #ifndef CONFIG_MN10300_CACHE_DISABLED | |
| 65 | extern void mn10300_icache_inv(void); | |
| 66 | extern void mn10300_dcache_inv(void); | |
| 67 | extern void mn10300_dcache_inv_page(unsigned start); | |
| 68 | extern void mn10300_dcache_inv_range(unsigned start, unsigned end); | |
| 69 | extern void mn10300_dcache_inv_range2(unsigned start, unsigned size); | |
| 70 | #ifdef CONFIG_MN10300_CACHE_WBACK | |
| 71 | extern void mn10300_dcache_flush(void); | |
| 72 | extern void mn10300_dcache_flush_page(unsigned start); | |
| 73 | extern void mn10300_dcache_flush_range(unsigned start, unsigned end); | |
| 74 | extern void mn10300_dcache_flush_range2(unsigned start, unsigned size); | |
| 75 | extern void mn10300_dcache_flush_inv(void); | |
| 76 | extern void mn10300_dcache_flush_inv_page(unsigned start); | |
| 77 | extern void mn10300_dcache_flush_inv_range(unsigned start, unsigned end); | |
| 78 | extern void mn10300_dcache_flush_inv_range2(unsigned start, unsigned size); | |
| 79 | #else | |
| 80 | #define mn10300_dcache_flush() do {} while (0) | |
| 81 | #define mn10300_dcache_flush_page(start) do {} while (0) | |
| 82 | #define mn10300_dcache_flush_range(start, end) do {} while (0) | |
| 83 | #define mn10300_dcache_flush_range2(start, size) do {} while (0) | |
| 84 | #define mn10300_dcache_flush_inv() mn10300_dcache_inv() | |
| 85 | #define mn10300_dcache_flush_inv_page(start) \ | |
| 86 | mn10300_dcache_inv_page((start)) | |
| 87 | #define mn10300_dcache_flush_inv_range(start, end) \ | |
| 88 | mn10300_dcache_inv_range((start), (end)) | |
| 89 | #define mn10300_dcache_flush_inv_range2(start, size) \ | |
| 90 | mn10300_dcache_inv_range2((start), (size)) | |
| 91 | #endif /* CONFIG_MN10300_CACHE_WBACK */ | |
| 92 | #else | |
| 93 | #define mn10300_icache_inv() do {} while (0) | |
| 94 | #define mn10300_dcache_inv() do {} while (0) | |
| 95 | #define mn10300_dcache_inv_page(start) do {} while (0) | |
| 96 | #define mn10300_dcache_inv_range(start, end) do {} while (0) | |
| 97 | #define mn10300_dcache_inv_range2(start, size) do {} while (0) | |
| 98 | #define mn10300_dcache_flush() do {} while (0) | |
| 99 | #define mn10300_dcache_flush_inv_page(start) do {} while (0) | |
| 100 | #define mn10300_dcache_flush_inv() do {} while (0) | |
| 101 | #define mn10300_dcache_flush_inv_range(start, end) do {} while (0) | |
| 102 | #define mn10300_dcache_flush_inv_range2(start, size) do {} while (0) | |
| 103 | #define mn10300_dcache_flush_page(start) do {} while (0) | |
| 104 | #define mn10300_dcache_flush_range(start, end) do {} while (0) | |
| 105 | #define mn10300_dcache_flush_range2(start, size) do {} while (0) | |
| 106 | #endif /* CONFIG_MN10300_CACHE_DISABLED */ | |
| 107 | ||
| 108 | /* | |
| 109 | * internal debugging function | |
| 110 | */ | |
| 111 | #ifdef CONFIG_DEBUG_PAGEALLOC | |
| 112 | extern void kernel_map_pages(struct page *page, int numpages, int enable); | |
| 113 | #endif | |
| 114 | ||
| 115 | #endif /* __ASSEMBLY__ */ | |
| 116 | ||
| 117 | #endif /* _ASM_CACHEFLUSH_H */ |